| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Belgium | 1 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Sweden | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Pipes | |
| #3 | Non-positive-displacement pumps | |
| #4 | Emergency protective circuit arrangements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kristenson N | 1 |
| #2 | Borje Kristenson Nils Henry | 1 |
| #3 | Kristenson Nils Henry Boerje | 1 |
| #4 | Boerje Kristenson Nils Henry | 1 |
| #5 | Kristenson Nils Henry Boerje D | 1 |
| #6 | Henry Borje Kristenson Nils | 1 |
| #7 | Kristenson Nils H B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB914760A | Improvements in and relating to centrifugal pumps | |
| US3044406A | Electromotor-driven centrifugal pump | |
| GB732186A | Improvements relating to conduit couplings | |
| CA664390A | Electromotor-driven centrifugal pump |